How to create a mindset shift around money and earning potential

HI. In the past few weeks my husband and I have decided to separate. I have worked on and off during our marriage and 15 months ago I started my own business as a Health and Wellness Coach. To date I have been earning money as a bonus as my husband earns well. Now I have to start earning a real living to support myself for the first time in my life. I know that I can earn 100K in a year in my new business but I’m not sure how to shift my mindset from earning a small amount to a substantial amount to support myself going forward,